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age related cognitive decline

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https://www.readbyqxmd.com/read/28110464/alexithymia-in-people-with-subjective-cognitive-decline-mild-cognitive-impairment-and-mild-alzheimer-s-disease
#1
Mehmet Yuruyen, Fundan Engin Akcan, Gizem Cetiner Batun, Gozde Gultekin, Mesut Toprak, Hakan Yavuzer, Murat Emul
BACKGROUND: Behavioral and psychological symptoms are widely accepted as accelerator factors in progression to dementia. Although alexithymia is closely related to normal aging process and poor neurocognitive performance, alexithymia has not been included in these symptoms yet. AIMS: Here, we aimed to investigate alexithymia features in people with prominent clinical memory complaints. METHODS: The participants (n = 82) were classified into three groups as: subjective cognitive decline (n = 30), mild cognitive impairment (n = 27), and mild Alzheimer's disease (n = 25) after Mini-Mental State Examination, Clinical Dementia Rating Scale, neuropsychological test battery, Geriatric Depression Scale, and Hachinski Ischemic Scale...
January 21, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28108945/self-reported-confusion-is-related-to-global-and-regional-%C3%AE-amyloid-data-from-the-women-s-healthy-ageing-project
#2
Georgia E McCluskey, Paul Yates, Victor L Villemagne, Christopher Rowe, Cassandra E I Szoeke
Disease-modifying treatments for Alzheimer's disease (AD) may require implementation during early stages of β-amyloid accumulation, well before patients have objective cognitive decline. In this study we aimed to assess the clinical value of subjective cognitive impairment (SCI) by examining the cross-sectional relationship between β-amyloid load and SCI. Cerebral β-amyloid and SCI was assessed in a cohort of 112 cognitively normal subjects. Subjective cognition was evaluated using specific questions on memory and cognition and the MAC-Q...
January 20, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28108637/tomm40-523-variant-and-cognitive-decline-in-older-persons-with-apoe-%C3%AE%C2%B53-3-genotype
#3
Lei Yu, Michael W Lutz, Robert S Wilson, Daniel K Burns, Allen D Roses, Ann M Saunders, Chris Gaiteri, Philip L De Jager, Lisa L Barnes, David A Bennett
OBJECTIVE: To interrogate a poly-T variant (rs10524523, '523) in TOMM40, a gene adjacent to the APOE gene on chromosome 19, in older persons with APOE ε3/3 homozygosity for association with cognitive decline, the clinical hallmark of Alzheimer disease (AD). METHODS: Data came from participants in 2 cohort studies of aging and dementia who underwent annual clinical evaluations for up to 21 years. APOE and TOMM40'523 genotypes were determined from DNA from blood or brain samples...
January 20, 2017: Neurology
https://www.readbyqxmd.com/read/28099630/the-brain-derived-neurotrophic-factor-bdnf-gene-val66met-polymorphism-affects-memory-performance-in-older-adults
#4
Lucas A de Azeredo, Tatiana De Nardi, Mateus L Levandowski, Saulo G Tractenberg, Julia Kommers-Molina, Andrea Wieck, Tatiana Q Irigaray, Irênio G da Silva, Rodrigo Grassi-Oliveira
Objective: Memory impairment is an important contributor to the reduction in quality of life experienced by older adults, and genetic risk factors seem to contribute to variance in age-related cognitive decline. Brain-derived neurotrophic factor (BDNF) is an important nerve growth factor linked with development and neural plasticity. The Val66Met polymorphism in the BDNF gene has been associated with impaired episodic memory in adults, but whether this functional variant plays a role in cognitive aging remains unclear...
January 12, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28099083/update-on-alzheimer-s-disease-therapy-and-prevention-strategies
#5
W Vallen Graham, Alessandra Bonito-Oliva, Thomas P Sakmar
Alzheimer's disease (AD) is the primary cause of age-related dementia. Effective strategies to prevent and treat AD remain elusive despite major efforts to understand its basic biology and clinical pathophysiology. Significant investments in therapeutic drug discovery programs over the past two decades have yielded some important insights but no blockbuster drugs to alter the course of disease. Because significant memory loss and cognitive decline are associated with neuron death and loss of gray matter, especially in the frontal cortex and hippocampus, some focus in drug development has shifted to early prevention of cellular pathology...
January 14, 2017: Annual Review of Medicine
https://www.readbyqxmd.com/read/28096124/nutritional-considerations-for-healthy-aging-and-reduction-in-age-related-chronic-disease
#6
REVIEW
Julie Shlisky, David E Bloom, Amy R Beaudreault, Katherine L Tucker, Heather H Keller, Yvonne Freund-Levi, Roger A Fielding, Feon W Cheng, Gordon L Jensen, Dayong Wu, Simin N Meydani
A projected doubling in the global population of people aged ≥60 y by the year 2050 has major health and economic implications, especially in developing regions. Burdens of unhealthy aging associated with chronic noncommunicable and other age-related diseases may be largely preventable with lifestyle modification, including diet. However, as adults age they become at risk of "nutritional frailty," which can compromise their ability to meet nutritional requirements at a time when specific nutrient needs may be high...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28095583/is-it-my-job-the-role-of-rns-in-the-assessment-and-identification-of-delirium-in-hospitalized-older-adults-an-exploratory-qualitative-study
#7
Miriam Anne Coyle, Pippa Burns, Victoria Traynor
HOW TO OBTAIN CONTACT HOURS BY READING THIS ARTICLE INSTRUCTIONS XX contact hours will be awarded by Villanova University College of Nursing upon successful completion of this activity. A contact hour is a unit of measurement that denotes 60 minutes of an organized learning activity. This is a learner-based activity. Villanova University College of Nursing does not require submission of your answers to the quiz. A contact hour certificate will be awarded once you register, pay the registration fee, and complete the evaluation form online at http://goo...
January 17, 2017: Journal of Gerontological Nursing
https://www.readbyqxmd.com/read/28095309/microglia-under-psychosocial-stressors-along-the-aging-trajectory-consequences-on-neuronal-circuits-behavior-and-brain-diseases
#8
Li Tian, Chin Wai Hui, Kanchan Bisht, Yunlong Tan, Kaushik Sharma, Song Chen, Xiangyang Zhang, Marie-Eve Tremblay
Mounting evidence indicates the importance of microglia for proper brain development and function, as well as in complex stress-related neuropsychiatric disorders and cognitive decline along the aging trajectory. Considering that microglia are resident immune cells of the brain, a homeostatic maintenance of their effector functions that impact neuronal circuitry, such as phagocytosis and secretion of inflammatory factors, is critical to prevent the onset and progression of these pathological conditions. However, the molecular mechanisms by which microglial functions can be properly regulated under healthy and pathological conditions are still largely unknown...
January 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28092399/association-of-dietary-patterns-with-global-and-domain-specific-cognitive-decline-in-chinese-elderly
#9
Yen-Ching Chen, Chien-Cheng Jung, Jen-Hau Chen, Jeng-Min Chiou, Ta-Fu Chen, Ya-Fang Chen, Sung-Chun Tang, Shin-Joe Yeh, Meei-Shyuan Lee
BACKGROUND: Significant differences exist between eastern and western diets, and the way in which Chinese dietary intake relates to specific cognitive domains remains unclear. We aimed to assess the association between dietary patterns (DPs) and cognitive decline in Chinese elderly. SETTING: Participants were recruited from the elderly health checkup program of a teaching hospital in Taipei, Taiwan. PARTICIPANTS: A total of 475 elders (age ≥65) were included in this prospective cohort study...
January 16, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28089351/longitudinal-association-between-hippocampus-atrophy-and-episodic-memory-decline
#10
Tetiana Gorbach, Sara Pudas, Anders Lundquist, Greger Orädd, Maria Josefsson, Alireza Salami, Xavier de Luna, Lars Nyberg
There is marked variability in both onset and rate of episodic-memory decline in aging. Structural magnetic resonance imaging studies have revealed that the extent of age-related brain changes varies markedly across individuals. Past studies of whether regional atrophy accounts for episodic-memory decline in aging have yielded inconclusive findings. Here we related 15-year changes in episodic memory to 4-year changes in cortical and subcortical gray matter volume and in white-matter connectivity and lesions...
December 11, 2016: Neurobiology of Aging
https://www.readbyqxmd.com/read/28087827/neuropsychological-outcome-following-frontal-lobectomy-for-pharmacoresistant-epilepsy-in-adults
#11
Robyn M Busch, Darlene P Floden, Lisa Ferguson, Shamseldeen Mahmoud, Audrina Mullane, Stephen Jones, Lara Jehi, William Bingaman, Imad M Najm
OBJECTIVE: This retrospective cohort study characterized cognitive and motor outcomes in a large sample of adults who underwent frontal lobe resections for treatment of pharmacoresistant epilepsy. METHODS: Ninety patients who underwent unilateral frontal lobe resection for epilepsy (42 language-dominant hemisphere/48 nondominant hemisphere) between 1989 and 2014 completed comprehensive preoperative and postoperative neuropsychological evaluations that included measures of verbal and nonverbal intellectual functioning, attention/working memory, processing speed, language, executive functioning, verbal and visual memory, and motor functioning...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087694/iso-%C3%AE-acids-bitter-components-of-beer-prevent-inflammation-and-cognitive-decline-induced-in-a-mouse-model-of-alzheimer-s-disease
#12
Yasuhisa Ano, Atsushi Dhata, Yoshimasa Taniguchi, Ayaka Hoshi, Kazuyuki Uchida, Akihiko Takashima, Hiroyuki Nakayama
Alongside the rapid growth in aging populations worldwide, prevention and therapy for age-related memory decline and dementia are in great demand to maintain a long healthy life. Here we found that iso-α-acids, hop-derived bitter compounds in beer, enhance microglial phagocytosis and suppress inflammation via activation of the peroxisome proliferator-activated receptor (PPAR-γ). In normal mice, oral administration of iso-α-acids led to a significant increase both in CD11b and CD206 double-positive anti-inflammatory type microglia (P<0...
January 13, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28087676/the-longitudinal-study-of-aging-in-human-young-adults-knowledge-gaps-and-research-agenda
#13
Terrie E Moffitt, Daniel W Belsky, Andrea Danese, Richie Poulton, Avshalom Caspi
BACKGROUND: To prevent onset of age-related diseases and physical and cognitive decline, interventions to slow human aging and extend health span must eventually be applied to people while they are still young and healthy. Yet most human aging research examines older adults, many with chronic disease, and little is known about aging in healthy young humans. METHOD: This article explains how this knowledge gap is a barrier to extending health span and puts forward the case that geroscience should invest in researching the pace of aging in young adults...
February 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28079431/vagus-nerve-stimulation-in-intractable-epilepsy-associated-with-scn1a-gene-abnormalities
#14
Stephen P Fulton, Kate Van Poppel, Amy L McGregor, Basanagoud Mudigoudar, James W Wheless
Mutations in the SCN1A gene cause a spectrum of epilepsy syndromes. There are 2 syndromes that are on the severe end of this spectrum. The classic severe form, Dravet syndrome, is an epileptic encephalopathy of childhood, causing cognitive decline as well as intractable seizures. Severe Myoclonic Epilepsy of Infancy-Borderline (SMEIB) is a term used to include cases with similar severities as those with Dravet syndrome, but lacking a single feature of classic severe myoclonic epilepsy of infancy. Vagus nerve stimulation is a nonpharmacologic treatment for intractable epilepsy...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28079014/predicting-cognitive-decline-across-four-decades-in-mutation-carriers-and-non-carriers-in-autosomal-dominant-alzheimer-s-disease
#15
Ove Almkvist, Elena Rodriguez-Vieitez, Steinunn Thordardottir, Kaarina Amberla, Karin Axelman, Hans Basun, Anne Kinhult-Ståhlbom, Lena Lilius, Anne Remes, Lars-Olof Wahlund, Matti Viitanen, Lars Lannfelt, Caroline Graff
OBJECTIVES: The aim of this study was to investigate cognitive performance including preclinical and clinical disease course in carriers and non-carriers of autosomal-dominant Alzheimer's disease (adAD) in relation to multiple predictors, that is, linear and non-linear estimates of years to expected clinical onset of disease, years of education and age. METHODS: Participants from five families with early-onset autosomal-dominant mutations (Swedish and Arctic APP, PSEN1 M146V, H163Y, and I143T) included 35 carriers (28 without dementia and 7 with) and 44 non-carriers...
January 12, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28078323/genetic-architecture-of-age-related-cognitive-decline-in-african-americans
#16
Towfique Raj, Lori B Chibnik, Cristin McCabe, Andus Wong, Joseph M Replogle, Lei Yu, Sujuan Gao, Frederick W Unverzagt, Barbara Stranger, Jill Murrell, Lisa Barnes, Hugh C Hendrie, Tatiana Foroud, Anna Krichevsky, David A Bennett, Kathleen S Hall, Denis A Evans, Philip L De Jager
OBJECTIVE: To identify genetic risk factors associated with susceptibility to age-related cognitive decline in African Americans (AAs). METHODS: We performed a genome-wide association study (GWAS) and an admixture-mapping scan in 3,964 older AAs from 5 longitudinal cohorts; for each participant, we calculated a slope of an individual's global cognitive change from neuropsychological evaluations. We also performed a pathway-based analysis of the age-related cognitive decline GWAS...
February 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28075382/b-vitamin-intake-and-biomarker-status-in-relation-to-cognitive-decline-in-healthy-older-adults-in-a-4-year-follow-up-study
#17
Catherine F Hughes, Mary Ward, Fergal Tracey, Leane Hoey, Anne M Molloy, Kristina Pentieva, Helene McNulty
Advancing age can be associated with an increase in cognitive dysfunction, a spectrum of disability that ranges in severity from mild cognitive impairment to dementia. Folate and the other B-vitamins involved in one-carbon metabolism are associated with cognition in ageing but the evidence is not entirely clear. The hypothesis addressed in this study was that lower dietary intake or biomarker status of folate and/or the metabolically related B-vitamins would be associated with a greater than expected rate of cognitive decline over a 4-year follow-up period in healthy older adults...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28073935/brain-structure-and-function-associated-with-younger-adults-in-growth-hormone-receptor-deficient-humans
#18
Kaoru Nashiro, Jaime Guevara-Aguirre, Meredith N Braskie, George W Hafzalla, Rico Velasco, Priya Balasubramian, Min Wei, Paul M Thompson, Mara Mather, Marvin D Nelson, Alexandra Guevara, Enrique Teran, Valter D Longo
: Growth hormone receptor deficiency (GHRD) results in short stature, enhanced insulin sensitivity, and low circulating levels of insulin and insulin-like growth factor 1 (IGF-1). Previous studies in mice and humans suggested that GHRD has protective effects against age-related diseases, including cancer and diabetes. Whereas GHRD mice show improved age-dependent cognitive performance, the effect of GHRD on human cognition remains unknown. Using magnetic resonance imaging (MRI), we compared brain structure, function, and connectivity between 13 people with GHRD and 12 unaffected relatives...
January 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28073332/an-examination-of-age-based-stereotype-threat-about-cognitive-decline
#19
Sarah J Barber
"Stereotype threat" is often thought of as a singular construct, with moderators and mechanisms that are stable across groups and domains. However, this is not always true. To illustrate this, the current review focuses on the stereotype threat that older adults face about their cognitive abilities. Drawing upon the multithreat framework, I first provide evidence that this is a self-concept threat and not a group-reputation threat. Because this differs from the forms of stereotype threat experienced by other groups (e...
January 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28072503/posttraumatic-stress-disorder-symptoms-and-cognitive-function-in-a-large-cohort-of-middle-aged-women
#20
Jennifer A Sumner, Kaitlin Hagan, Fran Grodstein, Andrea L Roberts, Brian Harel, Karestan C Koenen
BACKGROUND: Posttraumatic stress disorder (PTSD) has been linked to cognitive decline, but research in women is generally lacking. We examined whether trauma and elevated PTSD symptoms were associated with worse cognitive function in middle-aged civilian women. A secondary objective was to investigate the possible role of depression in the relation of PTSD symptoms to cognitive function. METHODS: The sample comprised 14,029 middle-aged women in the Nurses' Health Study II...
January 10, 2017: Depression and Anxiety
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